Hydrochloric Acid → HCID 22105677、化合物
反応式
[CH2:1]([O:8][C:9]1[CH:13]=[CH:12][S:11][C:10]=1[C:14]([N:16]([C:19]1[CH:29]=[CH:28][C:22]([C:23]([O:25][CH2:26][CH3:27])=[O:24])=[CH:21][CH:20]=1)[CH2:17][CH3:18])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.ClCCl>C1COCC1>[CH2:1]([O:8][C:9]1[CH:13]=[CH:12][S:11][C:10]=1[CH2:14][N:16]([C:19]1[CH:20]=[CH:21][C:22]([C:23]([O:25][CH2:26][CH3:27])=[O:24])=[CH:28][CH:29]=1)[CH2:17][CH3:18])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1参加物
実験手順
Borane-tetrahydrofuran complex (2.7 mL of a 1.0M solution in THF) was added over 5 minutes to a solution of ethyl 4-[N-(3-benzyloxy-2-thienoyl)-N-(ethyl)amino]benzoate (1.0 g) in THF (10 mL). The reaction mixture was stirred at ambient temperature for 15 minutes and then heated under reflux for 1 hour. An excess of aqueous 2N HCl was added to the cooled reaction mixture which was evaporated to dryness. The residue was made basic by the addition of aqueous potassium carbonate solution and this was extracted with diethyl ether (50 mL). The ether extract was washed with brine and dried over MgSO4. The oil obtained on removal of the solvent was subjected to chromatography on silica eluting with dichloromethane to give ethyl 4-[N-(3-benzyloxy-2-thienylmethyl)-N-(ethyl)amino]benzoate as an oil in 32% yield.
後処理
- temperatureheated
- temperatureunder reflux for 1 hour
- customwas evaporated to dryness
- additionThe residue was made basic by the addition of aqueous potassium carbonate solution
- extractionthis was extracted with diethyl ether (50 mL)
- extractionThe ether extract
- washwas washed with brine
- dry with materialdried over MgSO4
- customThe oil obtained on removal of the solvent
出典と根拠
- ORDレコード
- ord-e204d7f1d6cb400fb767d88196c44133
- 出典データセット
- uspto-grants-1998_12
- 特許番号
- US05843942
反応ノート
読み込み中…